Here are some highlights from the ESPN.com chat with San Francisco 49ers star inside linebacker NaVorro Bowman, which was held earlier Thursday:Arnold from Texas: Thought you had an amazing season and looking forward to 2014. How is your knee doing? Do you think you have a chance to play at the start of the season?NaVorro Bowman: The knee is doing great. I'm blessed to be walking. I think the first game of the season is out of the picture.GreggisKhan from South Bend: You were ascending to the top LB in the game before your injury.